Tourbillon Regulator AK04

The implicit utility of the AKRIVIA signature tourbillon is shown explicitly for the first time in the Tourbillon Regulator AK04. A blued seconds hand is mounted above the one-minute tourbillon cage, minutes are indicated via a central hand and hours via a separate counter at the twelve o’clock position. Just as the AK02 is the time-only variation of the AK01 movement, the AK04 is the time-only variation of the AK03 movement.

Historical regulator timepieces were deliberately built without complexity, because their entire mechanism and power reserve were solely for the purpose of precision timekeeping. They had separate axes for all indications in order to promote readability. These are the elements now expressed in the Tourbillon Regulator AK04 by AKRIVIA.

Precision is emphasised in the Tourbillon Regulateur
with its free-sprung balance

More details
MOVEMENT
Manually wound movement
DIMENSIONS
30.00 mm x 7.60 mm
POWER RESERVE
100 hours
NO. OF COMPONENTS
229
NO. OF JEWELS
22
BALANCE WHEEL
11.60 mm
FREQUENCY
21,600 vph
TOURBILLON
Diameter: 13.70 mm, weight: 0.36 g, Swiss anchor escapement, 60 seconds rotation
DECORATION
50 inward angles, black polish, Côtes de Genève, hand graining, hand polishing, rhodium finish, manual circular graining, hand-engraved, handblueing circular dial
DISPLAY
Hours on the small dial at 12h, central minutes hand, small second at 6h
FUNCTION
Hours, minutes and seconds
DIAL
Matte-polished, hand-hammered and handmade blue steel dial
CASE
43 mm x 12.90 mm, composed of 30 parts, front and back sapphire glass crystal with anti-reflective treatment
WATER RESISTANCE
3 ATM (30 meters)
HANDS
Blued steel – handmade AKRIVIA pattern hands